基于广义阴阳表面活性剂体系对不同黏度区间原油的普适性降黏作用

发布时间：2018-02-03 16:48

本文关键词： 广义阴阳表面活性剂稠油乳化降黏　出处：《物理化学学报》2017年08期 　论文类型：期刊论文

【摘要】：采用脂肪酸-脂肪胺混合的广义阴阳体系,分别通过水相引入与油相引入两种方式对黏度分布在0.05-155 Pa?s范围内的4种原油进行乳化降黏。针对不同地区原油的组成特点与黏度成因,调整复配体系中脂肪酸-脂肪胺的分子结构,采用不同手段构筑乳状液:对于黏度较低的普通稠油,采用水相引入脂肪酸-脂肪胺复配体系的方法;而对于胶质、沥青质含量极高的超稠油,采用油相引入脂肪酸-脂肪胺复配体系黏的方法。两种方法的降黏率均达到95%-99%,获得较为理想的降黏效果。
[Abstract]:In the generalized yin-yang system with fatty acid and aliphatic amine, the viscosity distribution was 0.05-155 Pa. by introducing water phase and oil phase, respectively. Four kinds of crude oil in s range were emulsified to reduce viscosity. The molecular structure of fatty acid and fatty amine in the compound system was adjusted according to the composition characteristics and viscosity formation of crude oil in different regions. The emulsion was constructed by different methods: for ordinary heavy oil with low viscosity, the water phase was used to introduce the fatty acid-aliphatic amine compound system; For super heavy oil with high content of asphaltene and colloid, the viscosity reduction rate of both methods is 95-99% by introducing fatty acid and aliphatic amine to the oil phase. An ideal viscosity reduction effect was obtained.
【作者单位】：提高石油采收率国家重点实验室(中国石油勘探开发研究院);北京大学化学与分子工程学院分子动态与稳态结构国家重点实验室;
【分类号】：TE869;TQ423
【正文快照】： 1引言导致稠油资源的开采、运输以及炼化过程中的能随着原油开采程度的不断加深,油藏中的重耗成本较高、施工困难,降低稠油黏度,改善稠质组分累积,导致原油黏度上升,形成稠油油藏。油流动性是解决稠油开采、集输和炼制问题的技尤其是在国内,稠油资源已经占石油地质总储量术关

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